Update pxt.json

Author: DeveloperTryingToCodeLikeOtherOfThem

pxt.json

@@ -35,8 +35,7 @@
         "docs/mixed-arrays.md",
         "docs/reading-makecode-docs-clearly.md"
     ],
-    "public": true
-    ,
+    "public": true,
     "preferredEditor": "tsprj",
     "languageRestriction": "javascript-only"
 }